5646443 has 4 divisors (see below), whose sum is σ = 6159768. Its totient is φ = 5133120.

The previous prime is 5646419. The next prime is 5646449. The reversal of 5646443 is 3446465.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5646443 - 2⁶ = 5646379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5646449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256646 + ... + 256667.

It is an arithmetic number, because the mean of its divisors is an integer number (1539942).

Almost surely, 2^5646443 is an apocalyptic number.

5646443 is a deficient number, since it is larger than the sum of its proper divisors (513325).

5646443 is a wasteful number, since it uses less digits than its factorization.

5646443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513324.

The product of its digits is 34560, while the sum is 32.

The square root of 5646443 is about 2376.2245264284. The cubic root of 5646443 is about 178.0703652283.

It can be divided in two parts, 564 and 6443, that added together give a palindrome (7007).

The spelling of 5646443 in words is "five million, six hundred forty-six thousand, four hundred forty-three".